#include<stdio.h>
int main() {
	int a = 10;
	int b = 20;
	int c = 0;
	c = a + b;
	printf("c=%d\n", c);
	c = 10 % 3;
	printf("c=%d\n", c);

	a += 3;//a=a+3;
	printf("a=%d\n", a);

	b += 2 * 8;//b=b+(2*8);
	printf("b=%d\n", b);

	return 0;
}